81146780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1669}}^1$

素因数の和:1719

約数の個数: 96

約数和(自身を含む): 212103360

約数和(自身を除く): 130956580

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 442, 572, 715, 748, 884, 935, 1105, 1430, 1669, 1870, 2210, 2431, 2860, 3338, 3740, 4420, 4862, 6676, 8345, 9724, 12155, 16690, 18359, 21697, 24310, 28373, 33380, 36718, 43394, 48620, 56746, 73436, 86788, 91795, 108485, 113492, 141865, 183590, 216970, 238667, 283730, 312103, 367180, 368849, 433940, 477334, 567460, 624206, 737698, 954668, 1193335, 1248412, 1475396, 1560515, 1844245, 2386670, 3121030, 3688490, 4057339, 4773340, 6242060, 7376980, 8114678, 16229356, 20286695, 40573390, 81146780]

約数ペア:

[(1, 81146780), (2, 40573390), (4, 20286695), (5, 16229356), (10, 8114678), (11, 7376980), (13, 6242060), (17, 4773340), (20, 4057339), (22, 3688490), (26, 3121030), (34, 2386670), (44, 1844245), (52, 1560515), (55, 1475396), (65, 1248412), (68, 1193335), (85, 954668), (110, 737698), (130, 624206), (143, 567460), (170, 477334), (187, 433940), (220, 368849), (221, 367180), (260, 312103), (286, 283730), (340, 238667), (374, 216970), (442, 183590), (572, 141865), (715, 113492), (748, 108485), (884, 91795), (935, 86788), (1105, 73436), (1430, 56746), (1669, 48620), (1870, 43394), (2210, 36718), (2431, 33380), (2860, 28373), (3338, 24310), (3740, 21697), (4420, 18359), (4862, 16690), (6676, 12155), (8345, 9724)]